Design of blade-shaped-electrode linear ion traps with reduced anharmonic contributions

作者：Deng K; Che H; Lan Y; Ge Y P; Xu Z T; Yuan W H; Zhang J; Lu Z H^*

来源：Journal of Applied Physics, 2015, 118(11): 113106.

DOI：10.1063/1.4931420

RF quadrupole linear Paul traps are versatile tools in quantum physics experiments. Linear Paul traps with blade-shaped electrodes have the advantages of larger solid angles for fluorescence collection. But with these kinds of traps, the existence of higher-order anharmonic terms of the trap potentials can cause large heating rate for the trapped ions. In this paper, we theoretically investigate the dependence of higher-order terms of trap potentials on the geometry of blade-shaped traps, and offer an optimized design. A modified blade electrodes trap is proposed to further reduce higher-order anharmonic terms while still retaining large fluorescence collection angle.

• 出版日期2015-9-21
• 单位华中科技大学